Mechanical boiling bagasse drier

Abstract

The invention discloses a mechanical boiling bagasse drier which comprises a feeder, a drier, a separation chamber, and the like, wherein the appearance of the drier is a long box or a box the top and the bottom of which are in an arc shape; the front upper part outside the box is provided with a material hopper and the feeder; the box is internally provided with one or two throwing rollers connected with a power and drive device; a material outlet of the drier is connected with a material inlet of the separation chamber; the bottom of the separation chamber is provided with a material outlet, and the upper part outside the separation chamber is provided with a tail gas pipe; and a hot gas inlet is arranged below the feeder in front of the drier. The drier effectively solves the problems of clotting, blockage, obstructed material outlet, low energy consumption, and the like frequently occurring during wet bagasse drying. When the device is used for drying the wet bagasse, the water content of the wet bagasse can be reduced to be below 42 percent, combustion heat can be improved by about 5 percent, and the heat efficiency of a boiler is improved by about 10 percent.

Description

technical field [0001] The invention relates to a drying device, in particular to a mechanical boiling bagasse drier for drying fuel wet bagasse by utilizing hot flue gas of a steam boiler burning bagasse in a sugarcane sugar factory. Background technique [0002] At present, the water content of sugarcane bagasse in Guangxi sugar factory is about 50%, and it goes directly into the boiler for combustion. The large amount of moisture contained in the bagasse that enters the furnace will consume a large amount of heat to vaporize during combustion, causing the temperature of the furnace to drop. After the bagasse is dried, reducing the moisture content of the bagasse into the furnace can significantly increase the calorific value of the bagasse. Studies have shown that the calorific value of bagasse can be increased by 3% for every 1% reduction in water content. The drier the bagasse is, the less excess air is required for combustion, the less heat is taken away by the flue g...

AI Technical Summary

Problems solved by technology

[0004] However, the shape of bagasse after crushing and pressing is greatly affected by sugarcane varieties and crushing conditions, and has a wide range of thickness. It is a loose bagasse mainly composed of cellulose, hemicellulose and lignin accompanied by other chaff. For materials, if the traditional method is used, it is easy to appear such as the blockage of the ventilation hole at the bottom of the bed, resulting in a dead bed or even an explosion. It is difficult to control the bagasse in a stable boiling state, and the drying effect is not ideal.

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